日本與東亞國家間農產品產業內貿易型態之分析

Intra-Industry Trade Patterns between Japan and East Asian Countries in the Agri-Food Sector

This paper attempts to investigate the different patterns of IIT in the agrifood sector between Japan and East Asian countries from 1997 to 2005 at the HS 9-digit level. Our empirical results show that the large portion of agri-food trade between Japan and East Asian countries is still one-way trade while IIT, particularly the share of VIIT has not grown rapidly from 1997 to 2005. Particularly, the fact that Japan imports high-quality agrifood products more than exports reflects in the opposite direction of quality ladder story based on Flam and Helpman type vertically differentiated trade model. The weak positive relationship between the share of VIIT and the factor endowment may be a result of the rising share of foreign direct investment due to multinational corporations in agri-food trade. 本研究嘗試以HS9碼分析日本與東亞國家在1997至2005年間不同型態農產品產業內貿易。實證結果指出，日本與東亞各國的農產貿易大都還是單向的產業間貿易，而產業內貿易中特別是垂直產業內貿易的份額在1997年至2005年間並沒有顯著的快速增加。值得注意的是，日本相對出口而言，進口較高品質的農產品的現象，反應出與Flam和Helpman型的垂直差異化品質階梯模型相反。垂直產業內貿易份額和要素秉賦之間相對較弱的正向關係，可能導因於多國籍農企業之間漸增的直接投資活動。

本研究嘗試以HS9碼分析日本與東亞國家在1997至2005年間不同型態農產品產業內貿易。實證結果指出，日本與東亞各國的農產貿易大都還是單向的產業間貿易，而產業內貿易中特別是垂直產業內貿易的份額在1997年至2005年間並沒有顯著的快速增加。值得注意的是，日本相對出口而言，進口較高品質的農產品的現象，反應出與Flam和Helpman型的垂直差異化品質階梯模型相反。垂直產業內貿易份額和要素秉賦之間相對較弱的正向關係，可能導因於多國籍農企業之間漸增的直接投資活動。